The Ruins of Isis is a novel by Marion Zimmer Bradley published in 1978.
Plot summary
The Ruins of Isis is a novel about an anthropologist and her husband adapting to a planet dominated by females.
Reception
Greg Costikyan reviewed The Ruins of Isis in Ares Magazine #1. Costikyan commented that "Ruins of Isis is by no means Bradley's best work; and her characters seem less well-realized than those of previous novels. On balance, however, the book is worth its [...] cover price."